Baby: Infant – Newborn – Toddler
When to start sleep training

When to start sleep training

The short answer: often around 4 months, but not automatically Many babies become better candidates for sleep training at about 4 months. By this age, circadian rhythm signaling is more organized, sleep cycles are more mature, and some babies can begin learning that falling asleep happens in a predictable place and sequence. Cleveland Clinic guidance […]

Ferber method explained

Ferber method explained

What is the Ferber method? The Ferber method is a behavioral sleep-training technique developed to address common infant and toddler sleep difficulties, especially bedtime resistance and repeated night wakings. In clinical language, it is usually categorized as graduated extinction. Extinction in behavioral medicine means reducing reinforcement for a behavior; in this context, the behavior is […]

Feeding to sleep habit explained

Feeding to sleep habit explained

What does feeding to sleep mean? Feeding to sleep means a baby regularly falls asleep while breastfeeding or bottle-feeding and comes to rely on that feed as the final step before sleep. Medical and parenting sources often describe this as a sleep association: a repeated cue that the brain links with sleep onset. For adults, […]

Feeding before sleep explained

Feeding before sleep explained

Why babies often feed before sleep Feeding before sleep is common because infant biology is built around frequent intake. In early life, babies have limited stomach capacity, immature circadian rhythm, and high energy demands relative to body size. A newborn may need to feed every few hours across the full 24-hour day, including evening and […]

Swaddling basics and safety

Swaddling basics and safety

Why swaddling can be soothing In the newborn period, many babies startle easily, wake frequently, and settle more readily when they feel held close. Swaddling can reduce the sensation of sudden arm movements, and evidence reviews suggest it may calm infants and support sleep for some families. The key point is that the soothing effect […]

Room temperature and clothing for sleep

Room temperature and clothing for sleep

Why temperature matters during baby sleep Infants have immature thermoregulation compared with older children and adults. They can lose heat relatively quickly because of their body proportions, but they can also overheat if overdressed, covered, or placed in a warm environment. During sleep, a baby’s ability to respond behaviorally is limited: a young infant cannot […]

Co-sleeping risks explained

Co-sleeping risks explained

What co-sleeping means, and why definitions matter The word co-sleeping is often used in everyday conversation to mean any close sleep arrangement. Medically, it is more useful to separate it into two categories. Bed-sharing means the baby sleeps on the same mattress, sofa, armchair, floor bed, or other surface as another person. Room-sharing without bed-sharing […]

SIDS prevention guidelines

SIDS prevention guidelines

Understanding SIDS and SUID SIDS is a diagnosis of exclusion: it is used when an infant death remains unexplained after investigation, including review of the circumstances, autopsy when performed, and clinical history. SUID is the broader public health term for sudden unexpected deaths in infancy, whether ultimately explained or unexplained. Many prevention recommendations address SIDS […]

Safe sleep guidelines US

Safe sleep guidelines US

Why safe sleep guidelines matter Sleep-related infant deaths include sudden infant death syndrome, often called SIDS, and deaths related to suffocation, entrapment, or strangulation in the sleep environment. The exact mechanism of SIDS is not fully understood, but risk appears to involve a vulnerable infant, a critical developmental period, and external stressors such as prone […]

Baby nap schedule by age

Baby nap schedule by age

Why naps change so much in early childhood Infant sleep is biologically different from adult sleep. In the newborn period, sleep is distributed across the day and night because the circadian rhythm, the internal 24-hour timing system, is still maturing. Feeding needs also strongly shape sleep. A young infant may wake because of hunger, discomfort, […]